I'm trying to add a submit form button, which only submits if all the visible required fields are completed. I also have some invisible required fields - they are invisible because not all subforms are shown each time - but if a subform is shown, then all fields on it need to be completed.
Is this possible? I also want the button to lock the form, so that no further changes can be made (including to the auto-populated current date field).
And thirdly, is it possible that when the form is being submitted, it is converted to a standard non-xfa PDF form (as xfa functionality will no longer be required after submission as the form is locked)?
Still trying to work this one out so would be grateful for any help!